2SD1898-R-TP Equivalent & Substitute Parts

Part Overview

The 2SD1898-R-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This transistor operates at a maximum collector current of 1 A with a collector-emitter breakdown voltage of 80 V and a maximum power dissipation of 500 mW. The device is housed in a SOT-89 package and features a transition frequency of 100 MHz with an operating temperature range of -55°C to 150°C. The part maintains Active product status with 800 pieces currently in stock.

Substitute parts are necessary when the original 2SD1898-R-TP becomes unavailable, when alternative packaging formats are required, or when enhanced performance characteristics are beneficial for specific circuit applications while maintaining electrical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	1	A
Voltage - Collector Emitter Breakdown (Max)	80	V
Vce Saturation (Max) @ Ib, Ic	400mV @ 20mA, 500mA	—
Current - Collector Cutoff (Max)	1	µA
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 500mA, 3V	—
Power - Max	500	mW
Frequency - Transition	100	MHz
Operating Temperature	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—
Supplier Device Package	SOT-89	—

Substitute Part Grouping Explanation

Substitution of the 2SD1898-R-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

Transistor Type: NPN
Current - Collector (Ic) (Max): 1 A
Voltage - Collector Emitter Breakdown (Max): 80 V
Mounting Type: Surface Mount
Package / Case: TO-243AA
Supplier Device Package: SOT-89 or SOT-89-3

Allowable Variation Parameters:

Vce Saturation (Max): Substitute values must not exceed the application requirements
Current - Collector Cutoff (Max): Lower values indicate improved performance
DC Current Gain (hFE) (Min): Higher values indicate improved performance
Power - Max: Higher values provide additional thermal margin
Frequency - Transition: Higher values provide improved switching performance
Operating Temperature: Extended ranges provide additional operational flexibility

All substitute parts listed maintain identical collector current and breakdown voltage specifications, ensuring direct electrical compatibility in circuits designed for the 2SD1898-R-TP.

Parameter Comparison

Parameter	2SD1898-R-TP	BCX56,135	BCX56-16,115	BCX5616QTA
Manufacturer	Micro Commercial Co	NXP USA Inc.	Nexperia USA Inc.	Diodes Incorporated
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) (Max)	1 A	1 A	1 A	1 A
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	80 V
Vce Saturation (Max) @ Ib, Ic	400mV @ 20mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	1 µA	100 nA	100 nA	100 nA
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 500mA, 3V	63 @ 150mA, 2V	100 @ 150mA, 2V	100 @ 150mA, 2V
Power - Max	500 mW	1.25 W	1.25 W	2 W
Frequency - Transition	100 MHz	180 MHz	180 MHz	150 MHz
Operating Temperature	-55 to 150°C	150°C	150°C	-65 to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-243AA	TO-243AA	TO-243AA
Supplier Device Package	SOT-89	SOT-89	SOT-89	SOT-89-3
Packaging Format	Bulk	Bulk	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®
Product Status	Active	Active	Active	Active
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

All substitute parts maintain Active product status and REACH Unaffected compliance, ensuring regulatory continuity with the original 2SD1898-R-TP design.

BCX56,135 (NXP USA Inc.): This substitute provides enhanced power dissipation capability at 1.25 W compared to the original 500 mW specification, with improved transition frequency of 180 MHz. The collector cutoff current is reduced to 100 nA, indicating superior leakage characteristics. Available in Bulk packaging with 161,047 pieces in stock. Operating temperature maximum is specified at 150°C without a minimum temperature specification provided.

BCX56-16,115 (Nexperia USA Inc.): This substitute offers identical electrical performance to BCX56,135 with 1.25 W power dissipation and 180 MHz transition frequency. DC current gain is specified at 100 @ 150mA, 2V, providing improved gain characteristics. Available in Cut Tape and Digi-Reel® packaging formats with 2,100 pieces in stock. RoHS3 Compliant status and MSL Level 1 (Unlimited) moisture sensitivity rating are provided. Operating temperature maximum is 150°C.

BCX5616QTA (Diodes Incorporated): This substitute provides the highest power dissipation at 2 W with 150 MHz transition frequency. Operating temperature range extends to -65°C minimum, providing broader low-temperature operation compared to the original -55°C specification. Available in Cut Tape and Digi-Reel® packaging with 6,607 pieces in stock. RoHS3 Compliant status and MSL Level 1 (Unlimited) moisture sensitivity rating are provided. Package designation is SOT-89-3.

Frequently Asked Questions (FAQ)

Q: Can BCX56,135, BCX56-16,115, and BCX5616QTA be used interchangeably with 2SD1898-R-TP in existing circuit designs?

A: Yes. All three substitute parts maintain identical collector current (1 A), collector-emitter breakdown voltage (80 V), and surface mount SOT-89 package configuration. The electrical parameters are within acceptable substitution ranges for circuits designed for the 2SD1898-R-TP.

Q: What is the difference between SOT-89 and SOT-89-3 packages?

A: Both package designations refer to the same physical TO-243AA case outline used for three-terminal transistor devices. The "-3" designation in SOT-89-3 explicitly indicates a three-terminal configuration. Physical compatibility is maintained across both designations.

Q: Are there differences in thermal performance between the substitute parts?

A: Yes. BCX5616QTA provides the highest maximum power dissipation at 2 W, compared to 1.25 W for BCX56,135 and BCX56-16,115, and 500 mW for the original 2SD1898-R-TP. Applications requiring higher power dissipation capability should select BCX5616QTA.

Q: Which substitute part has the best high-frequency performance?

A: BCX56,135 and BCX56-16,115 both provide 180 MHz transition frequency, compared to 100 MHz for the original 2SD1898-R-TP and 150 MHz for BCX5616QTA. Applications requiring maximum switching speed should select either NXP or Nexperia part.

Q: What is the significance of the collector cutoff current specification?

A: Collector cutoff current (ICBO) represents leakage current in the off state. The substitute parts specify 100 nA compared to 1 µA for the original 2SD1898-R-TP, indicating superior leakage performance. Lower leakage current reduces power consumption in standby conditions.

Q: Are all substitute parts RoHS compliant?

A: BCX56-16,115 and BCX5616QTA are explicitly specified as RoHS3 Compliant. RoHS compliance status is not provided for BCX56,135 in the available data.

Q: What packaging formats are available for each substitute?

A: 2SD1898-R-TP and BCX56,135 are available in Bulk packaging. BCX56-16,115 and BCX5616QTA are available in Cut Tape (CT) and Digi-Reel® packaging formats, providing options for automated assembly processes.

Q: How does the DC current gain (hFE) differ between parts?

A: The original 2SD1898-R-TP specifies hFE minimum of 82 @ 500mA, 3V. BCX56,135 specifies 63 @ 150mA, 2V. BCX56-16,115 and BCX5616QTA both specify 100 @ 150mA, 2V. Higher hFE values indicate improved current amplification capability at the specified operating points.

Q: What is the operating temperature range for each part?

A: 2SD1898-R-TP operates from -55°C to 150°C. BCX56,135 and BCX56-16,115 specify 150°C maximum without minimum temperature data. BCX5616QTA operates from -65°C to 150°C, providing the widest low-temperature range.

Q: Are all parts REACH compliant?

A: Yes. All parts including 2SD1898-R-TP, BCX56,135, BCX56-16,115, and BCX5616QTA are specified as REACH Unaffected.

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